#645D9A#645D9A

#645D9A is a mid, moderate blue. Relative luminance 0.129; OKLCH L 51.2% C 0.095 H 287.8°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#645D9A
RGB	rgb(100, 93, 154)
HSL	hsl(247, 25%, 48%)
HSV	hsv(247, 40%, 60%)
CMYK	cmyk(35.1%, 39.6%, 0%, 39.6%)
CIE-LAB	lab(42.57, 17.76, -32.35)
CIE-LCH	lch(42.57, 36.91, 298.77°)
OKLab	oklab(51.18% 0.0291 -0.0907)
OKLCH	oklch(51.18% 0.095 287.8)
XYZ	xyz(15.0011, 12.8707, 32.2595)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645D9A #939A5D

analogous

#5D749A #645D9A #825D9A

triadic

#645D9A #9A645D #5D9A64

tetradic

#645D9A #9A5D74 #939A5D #5D9A82

square

#645D9A #9A5D74 #939A5D #5D9A82

split-complementary

#645D9A #9A825D #749A5D

monochromatic

#322F4E #4B4674 #645D9A #8781B3 #ABA7CA

Accessibility & contrast

On white

5.88

#645D9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#645D9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645D9A

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645D9A	#FFFFFF	#000000	##FFFFFF
##645D9A	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A669C

Deuteranopia (green-blind)

#496399

Tritanopia (blue-blind)

#566874

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #645d9a;
/* rgb */ color: rgb(100, 93, 154);
/* oklch */ color: oklch(51.2% 0.095 287.8);

Tailwind

colors: {
  custom: {
    50: '#928bb8',
    500: '#645d9a',
    950: '#000000',
  },
}

SCSS

$custom: #645d9a;
$custom-light: #928bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#645d9a",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 154
  },
  "hsl": {
    "h": 246.885,
    "s": 24.696,
    "l": 48.431
  },
  "oklch": {
    "l": 0.51182,
    "c": 0.09522,
    "h": 287.8
  },
  "luminance": 0.12871
}

Semantic roles & 50–950 ramp

primary

#645D9A

secondary

#B5B89B

accent

#C167B7

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0B11

muted

#7E7C80

Preview Lab

Preview with #645D9A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →